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Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

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Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#461

Post by rootusrootus »

mattgreenrocks wrote: post #392
rootusrootus wrote: post #333

Earlier quoted context omitted.

Washers seem to be an exception. My gut feeling is that the real HE improvement was switching everyone from top loaders to front loaders. Front loaders do a great job cleaning and use a whole lot less water in the process.

Front loaders have bad mold issues with the liner though. We switched away from an old one. No regrets.

Yeah I can see where that might end up being an issue. We always leave the door open when it's not in use, and we run the cleaning cycle once a week, so we haven't had any problems at this point (knock on wood).

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#462

Post by adolph »

IgorPartola wrote: post #315
Karawebnetwork wrote: post #308

Earlier quoted context omitted.

> Any kind of smoke hangs around in a room for many hours well past when you can smell it. But once the sensors indicate that the PM2.5 is gone, everything is fine, right?

If that's sarcasm, you aren't providing enough context for me to pick up what you are putting down. If not, then the honest answer is "I don't know for sure, I'm still researching it." From what I can tell, PM2.5 isn't the end-all be-all metric and sensors can give false readings. That's why I'm building multiple devices with different types of sensors and monitoring multiple metrics. PM10 and PM1.0 are also concerns…

Are you looking at BME680 vs CCS811 vs SGP30 or something else?

https://www.jaredwolff.com/finding-the-best-tvoc-sensor-ccs8...

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#463

Post by pugworthy »

post_break wrote: post #2

I bought an expensive Dyson air purifier for a couple of reasons. It has a remote so I can turn it on from bed. It looks attractive. The sound profile is much different than a box fan for sleeping at night. It can analyze the temperature, humidity, and air quality in real time and turn on if it notices air quality is getting bad. It also oscillates. That said yes it was expensive, but it replaced needing a fan for co…

What I don't see anywhere in there is whether it's effective at filtering air.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#464

Post by lumost »

catmanjan wrote: post #378
Judgmentality wrote: post #375

Earlier quoted context omitted.

I think you're assuming the laughter is at the child, not with the child. It's laughing about a mistake because that's what makes us human.

Do children understand that nuance? I would have thought they would associate people falling with laughing

Very young children mirror the emotions of their caregivers. Generally if you laugh they will think that it's time to laugh, if you are concerned they will think it's time for them to be concerned. Very young children don't really understand what to do when they are concerned, and so they cry hoping that their caregivers will focus on them and make things better.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#465

Post by willis936 »

gonehome wrote: post #206
ortusdux wrote: post #4

I still cannot get over this product. They whole selling point of a dyson fan is the 'air multiplier' tech, which creates a low pressure zone that propels air through the ring. According to dyson, this tech can move 15x more air than the fan in the base of the unit. Why in the world would you build an air filter around a system that does not directly interact with 93% of the air it moves? https://www.jameco.com/Jamec…

The fan also sucks compared to something like a Vornado. "Buffeting" of air is not a practical issue when using a fan - you want a fan that can create a lot of air flow. The Dyson fan comes across form first then making up reasons to explain the form retroactively. It feels like an interesting look is the goal rather than something that's actually better. Am I wrong about this? Do people that have the fan like it? Is…

I like vornado, but it’s hard to find the analog potentiometer controlled ones these days. Almost all of them are three speed.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#466

Post by pugworthy »

hytdstd wrote: post #383

The article completely ignores noise. I personally have a box fan filter, but I don't pretend that it's appropriate or better for most people-- it's loud and annoying to work in the same room, and almost impossible to sleep with. And it is important that they're constantly on [0] (air quality generally reverts to normal levels in less than 2 hours), because all homes breathe to mitigate moisture and mold growth. [0]:…

Different people have different priorities. For some, it's about health from the purified air - that's the top metric for success.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#467

Post by adolph »

wincy wrote: post #48
timthorn wrote: post #41

Earlier quoted context omitted.

The idea is that the fan is deployed in a closed room and over time, all the air in the room will be circulated through the filter.

But isn't using a fan too long in an enclosed room dangerous? https://en.wikipedia.org/wiki/Fan_death

Some effects of extremely low frequency electromagnetic fields (ELF-EMFs) on human spermatozoaare reported. Significant increases in the values of the motility and of the other kinematic parameters have been observed when spermatozoa were exposed to an ELF-EMF with a square waveform of 5 mTamplitude and frequency of 50 Hz.

https://onlinelibrary.wiley.com/doi/pdf/10.1002/bem.20278

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#468

Post by sroussey »

WiseWeasel wrote: post #291
alasdair_ wrote: post #267

Earlier quoted context omitted.

We bought a Dyson fan when we had very small children that liked to stick their fingers into moving fan blades. It works really well for that purpose.

They’d probably only do it once. It builds character, similar to == in JS or PHP.

We have parrots, and don’t want them to die the first time.

We need a fan, and optional air filter. Not sure what other options there are...

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#469

Post by sroussey »

ekianjo wrote: post #441
jb1991 wrote: post #317

Earlier quoted context omitted.

Says no one who has ever raised kids.

You seem to assume that everything was 100% safe in previous generations. Actually it was not the case, and you don't see many 60 years old crippled by domestic accidents when they were small kids, do you?

No, they died.

Re: Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test

#470

Post by unnouinceput »

Quote: "Dyson has developed its own testing methodology, the POLAR test method, which, unlike the CADR, Hill said, "measures the intelligence of the purifier, the ability for it to know when that room is clean or dirty and automatically react, and its ability to mix that pure air around the room."

Yup, corporate mambo-jumbo when they get caught with their pants down.

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